Cold Capable Bally Flex Tester
1. Function and Application The 12-Station Cold Capable Bally Flex Tester is designed to evaluate the flexural fatigue resistance of leather, composites, vinyl, surface finishes, and other materials under both ambient and sub-zero conditions. Up to 12 specimens are folded and clamped between fixed lower clamps and oscillating upper clamps. Each cycle flexes a crease in the specimen, simulating the natural folding and bending a shoe upper or similar material undergoes during use, to assess its propensity to crack. The integrated freezer system allows testing at temperatures down to -30°C, making this instrument suitable for cold-capable flex testing applications. 2. Applicable Standards ASTM D6182 BS 3144: Method 13 DIN 53351 EN ISO 5402 TSL 5101G Sec. 3.14.1 3. Technical Specifications Feature Specification Stations 12 Temperature Capability Ambient to -30°C Flex Sample Clamps Fixed lower clamps / oscillating upper clamps Cycle Control Programmable count-up controller with automatic stop Stroke / Motion Fold crease cycle for flexural fatigue testing Scissor Lift Electric lift inside freezer for lowering/raising tester Control Panel Digital temperature display, digital soak timer, digital cycle counter Safety Vented protective cover for operator protection; optional interlocks Construction Non-corrosive aluminum and stainless steel with durable powder coat and anodized finishes Bearings Precision ball and needle bearings Motor High quality brushless electric motor Power Requirements Supply voltages vary; must be specified at time of purchase Operational Control Adjustable jog and test speed controls Display / Indicators Flashing red light indicates test completion; optional selector switch disables freezer timer for ambient operation
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